When using pipe delimiter for composed functions a user can't update a stream

[cppwfs]

For example if you set deployment properties as app.myhttp.spring.cloud.stream.function.definition=upper|suffix. But when you try to update the stream to something like app.myhttp.spring.cloud.stream.function.definition=upper|suffix|reverse, the parser fails stating that upper is not a valid application. The workaround is to use commas instead of pipes.

[sabbyanandan]

There's the use of | and ; as delimiters. I wasn't aware of ,, however. Let's confirm the recommended approach that we want to promote in SCDF. cc:/ @olegz

[olegz]

Yes, that is correct. Coma is another delimiter with the same meaning as pipe for precisely the cases where piper may not work (e.g., HTTP URi)

[dturanski]

@olegz - You recently discouraged the use of , . SCSt currently replaces with |. Is this something that might go away?
Another alternative is to use single quotes on the definition. But that passes through to SCSt, and would also have to be handled.

[cppwfs]

Retested and was unable to reproduce.